<template>
	<view v-if="detrailList.goods_name" class="goods-detail-container">
		<swiper :indicator-dots="true" :autoplay="true" :interval="3000" :duration="1000" >
      <swiper-item v-for="(item,index) in detrailList.pics" :key="index">
        <image :src="item.pics_big" @click="imageIndex(index)"></image>
      </swiper-item>
    </swiper>
    <!-- 购买详情页面 -->
    <view class="goods-info-box">
      <!-- 商品价格 -->
      <view class="price" >￥{{detrailList.goods_price}}</view>
      <!-- 信息主题区域 -->
      <view class="goods-info-body">
        <!-- 商品名称 -->
        <view class="goods-name">
          {{detrailList.goods_name}}
        </view>
        <!-- 收藏 -->
        <view class="favi">
          <uni-icons type="star" size="18" color="gray"></uni-icons>
          <text>收藏</text>
        </view>
      </view>
      <view class="yf">
        快递，免运费
      </view>
     
    </view>
     <rich-text :nodes="detrailList.goods_introduce"></rich-text>
     <view class="goods_nav">
        <uni-goods-nav :fill="true"  :options="options" :buttonGroup="buttonGroup"  @click="onClick" @buttonClick="buttonClick" />
     </view>
	</view>
</template>

<script>
  import {mapState,mapMutations,mapGetters} from "vuex"
	export default {
    computed:{
      ...mapState('m_cart',['cart']),
      ...mapGetters('m_cart',['total'])
    },
    watch:{
      total:{
        handler(newVal) {
                const findResult = this.options.find(x => x.text === '购物车')
                if (findResult) {
                   findResult.info = newVal
                }
             },
             immediate: true
      }  
    },
		data() {
			return {
				detrailList:[],
        options: [{
              icon: 'shop',
              text: '店铺'
            }, {
              icon: 'cart',
              text: '购物车',
              info: 0
            }],
            // 右侧按钮组的配置对象
            buttonGroup: [{
                text: '加入购物车',
                backgroundColor: '#ff0000',
                color: '#fff'
              },
              {
                text: '立即购买',
                backgroundColor: '#ffa200',
                color: '#fff'
              }
            ]
			};
		},
    onLoad(options){
      // console.log(options)
      const goodsid = options.goods_id
      this.detrailListIndex(goodsid)
    },
    methods:{
     ...mapMutations('m_cart', ['addToCart']),
     async detrailListIndex(goodsid){
       // console.log(goodsid)
        const {data:res} = await uni.$http.get('/api/public/v1/goods/detail',{goods_id:goodsid})
        // console.log(res)
        if(res.meta.status !== 200) return uni.$showMsg()
        res.message.goods_introduce = res.message.goods_introduce.replace(/<img /g,'<img style="display:block;"').replace(/webp/g,'jpg')
        this.detrailList = res.message
      },
      imageIndex(index) {
        uni.previewImage({
          current:index,
          urls:this.detrailList.pics.map(x => x.pics_big)
        })
      },
      onClick(e){
        // console.log(e)
        if(e.content.text === '购物车') {
          uni.switchTab({
            url:'/pages/Card/Card'
          })
        }
      },
      buttonClick(e) {
         // 1. 判断是否点击了 加入购物车 按钮
         if (e.content.text === '加入购物车') {
            // 2. 组织一个商品的信息对象
            const goods = {
               goods_id: this.detrailList.goods_id,       // 商品的Id
               goods_name: this.detrailList.goods_name,   // 商品的名称
               goods_price: this.detrailList.goods_price, // 商品的价格
               goods_count: 1,                           // 商品的数量
               goods_small_logo: this.detrailList.goods_small_logo, // 商品的图片
               goods_state: true                         // 商品的勾选状态
            }
            // 3. 通过 this 调用映射过来的 addToCart 方法，把商品信息对象存储到购物车中
            this.addToCart(goods)
         }
       }
    }
	}
</script>

<style lang="scss">
swiper {
  height: 750rpx;
  image {
    width: 100%;
    height: 100%;
  }
}
.goods-info-box {
  padding: 10px;
  padding-right: 0;

  .price {
    color: #c00000;
    font-size: 18px;
    margin: 10px 0;
  }

  .goods-info-body {
    display: flex;
    justify-content: space-between;

    .goods-name {
      font-size: 13px;
      padding-right: 10px;
    }
    // 收藏区域
    .favi {
      width: 120px;
      font-size: 12px;
      display: flex;
      flex-direction: column;
      justify-content: center;
      align-items: center;
      border-left: 1px solid #efefef;
      color: gray;
    }
  }

  // 运费
  .yf {
    margin: 10px 0;
    font-size: 12px;
    color: gray;
  }
}
.goods-detail-container {
  // 给页面外层的容器，添加 50px 的内padding，
  // 防止页面内容被底部的商品导航组件遮盖
  padding-bottom: 50px;
}

.goods_nav {
  // 为商品导航组件添加固定定位
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
}
</style>
